When my daughter turned 18, it reminded me of something simple but easy to forget: big birthdays are automatic milestones. They come with balloons, dinners, photos, and all the โyouโre grown now, woohooโ speeches. There are umpteen scripts for turning 13 through 25 โ the OG markers of independence, responsibility, and new beginnings. But guess what: milestones donโt just belong to the kiddos. Sure, we still celebrate those over 30 birthdays with or without parties with 40-deep friends, or sheet cakes full of candles; but itโs a combo of โyeah, youโve made it another year and we love youโ โ yet, unless we actively choose it, we donโt tie it…